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For our customers' benefit we take part in a number of different group tests so that they can see how our notebook computers perform in comparison to others. Rock have consistently come out on top for performance, innovative design, value for money and inherent build quality, obtaining more awards from industry experts than any other notebook manufacturer.

Click here to see how the press review our laptops.

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So you want it all ...well the Sigma Di has it. Underneath it’s stylish sleek exterior is home to the latest Intel® Pentium® 4 processor, DDR Ram and a host of cutting edge features. Suprisingly light, it’s also light on your pocket.



  • Up to Intel® Pentium® 4 2.4GHz Processor
  • Up to 1Gb DDR RAM
  • Up to 80Gb Ultra DMA-100 Hard Drive
  • 14.1” XGA TFT Panel
  • Internal Floppy Drive
  • CD / DVD / DVD+CDRW Combo Drive
  • Firewire™ & USB Ports
  • 56k Modem & 10/100Mbps LAN
  • Ability Office
  • Antivirus Software
  • Microsoft Windows XP Home
  • Carry Case
  • 3yr Collect & Return Warranty

Additional Specifications

Internal 3.5” 1.44Mb Floppy Drive / 4x AGP / 8 Cell Smart Li-ION Battery / 1x Type II PC Card Slot / 2x High Quality Stereo Speakers / Anti-Virus Software / Win key Keyboard & 2 Button Track Pad & Scroll Button / Carry Case / AC Adaptor / Ports: 1 x IEEE1394 Firewire, 2x USB, 1 x Parallel, 1x RJ11, 1x RJ45 (LAN 10/100), 1x S-Video (TV Out), 1 x IRDA 1.1 (4Mb/Sec), 2 x Audio Jacks, 1x 15 pin VGA / Dimensions: 308(w) x 245(d) x 37mm (h) & 3.2Kg

Specifications may be subject to change without notice. All Trademarks acknowledged. E & OE. Photographs are for illustration purposes only. Intel®, Intel® Inside and the Mobile Intel® Pentium® 4 Processor - M Logo are trademarks or registered trademarks of the Intel® Corporation or it’s subsiduaries in the United States and other countries. All models shown are subject to stock availability.

3 Year Collect and Return Warranty - Customer Care Ahead of the Industry Standard.

rockdirect are the first and only notebook manufacturer to offer a 3-year Insurance backed, Collect and Return Warranty on all their notebooks as standard.

Designed to give customers the security and peace of mind they demand, Rock’s 3-year Collect and Return Warranty will deliver unrivalled support to Home, Education and Business Users everywhere. Now that's what you call total customer satisfaction.

Models from £799

SDI-2.4 £799
Excl VAT
Intel® Pentium® 4 2.4GHz / 256Mb DDR RAM / 14.1” XGA TFT / 30Gb HDD / Combo Drive / Windows XP Home / Ability Office & Antivirus
+ 3yrs Collect & Return Warranty! £938.83 Incl VAT
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